The method after Schaich and Hamerle is exact but lacks a bit of power, whereas the method of Conover is approximative and more liberal.
CITATION STYLE
Schaich, E., & Hamerle, A. (1984). Verteilungsfreie statistische Prüfverfahren. Verteilungsfreie statistische Prüfverfahren. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-70032-3
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